Fog is limiting visibility to just about 50 m. What applies in this situation for vehicles with a gross vehicle weight rating over 7.5 t?

In situations of reduced visibility, such as fog where visibility is limited to 50 meters, specific traffic rules apply to vehicles with a gross vehicle weight rating over 7.5 tonnes.

1. Overtaking is prohibited on roads outside of built-up areas because it poses additional risks when visibility is compromised. This rule ensures that drivers do not engage in potentially dangerous maneuvers that they may not see coming.

2. The permissible maximum speed is limited to 50 km/h on all roads in such conditions. This is to ensure that drivers have enough time to react to unforeseen obstacles or other vehicles in low visibility situations, promoting safety.

It is important to select both of these options together because they collectively address the heightened risk posed by fog and other low-visibility conditions, reinforcing safety for all road users. The third option regarding overtaking on motorways is not applicable in this context, as the general overtaking prohibition applies here as well due to reduced visibility. Understanding these rules helps to avoid accidents and maintain order on the roads during challenging weather conditions.